CN108091461A - A kind of preparation method of ZnO varistor - Google Patents
A kind of preparation method of ZnO varistor Download PDFInfo
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- CN108091461A CN108091461A CN201711185210.2A CN201711185210A CN108091461A CN 108091461 A CN108091461 A CN 108091461A CN 201711185210 A CN201711185210 A CN 201711185210A CN 108091461 A CN108091461 A CN 108091461A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/006—Apparatus or processes specially adapted for manufacturing resistors adapted for manufacturing resistor chips
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/105—Varistor cores
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Abstract
The invention discloses a kind of preparation method of ZnO varistor, products obtained therefrom of the present invention has polyphenylene sulfide（PPS）Composite material, conductivity is higher, and in hot environment and wet environment, performance is stablized, and the piezoresistor has the characteristics that pressure sensitive voltage is low, nonlinear factor is high and pressure-sensitive character is stablized, and preparation process is simple and easy to control, cost is relatively low.
Description
Technical field
The present invention relates to resistance material manufacturing fields, and in particular to a kind of preparation method of ZnO varistor.
Background technology
In terms of energy pathway, it is that mechanical vibrational energy is converted to electric energy to study most active field at present, wherein
Many mineral-type materials such as lead zirconate titanate（PZT）Although with barium titanate etc. with excellent piezoelectricity, due to its own damping
Poor-performing and rigidity it is larger, so being difficult to use in damping material.
ZnO varistor is other mental compound additives that lot of trace is added based on ZnO powders, through mixed
The polycrystalline multiphase semiconductor ceramic element closed, be sintered at high temperature after shaping.Since its invention, ZnO varistors
Just with the excellent performances such as its is cheap, easily manufactured, nonlinear factor is big, the response time is fast, discharge capacity is big, in power train
It is widely used in system and electronics industry.
Polyphenylene sulfide（PPS）It is a kind of property that Phillips Petroleum oil companies of the U.S. are succeeded in developing in nineteen sixty-eight
It can superior new special engineering plastics.In the past 10 years, PPS has become kind with fastest developing speed in engineering plastics, is known as " using
In the novel plastic of jet age ".PPS has excellent heat resistance, corrosion resistance, anti-flammability, rigidity and electrical property, Yi Jiliang
Good self-lubricating effect and certain bearing capacity, biggest advantage is：It can be combined with different fillers or different matrix,
Under certain processing conditions, by special treatment method, to meet specific requirement.At present, it is in high-temperature resistance plastice
Price is minimum, the thermoplastic material of excellent combination property, is the new varieties with good development potentiality and competitiveness.
The content of the invention
The present invention provides a kind of preparation method of ZnO varistor, and products obtained therefrom of the present invention has polyphenylene sulfide（PPS）
Composite material, conductivity is higher, and in hot environment and wet environment, performance is stablized, and the piezoresistor has pressure-sensitive electricity
It forces down, the characteristics of nonlinear factor is high and pressure-sensitive character stablizes, preparation process is simple and easy to control, cost is relatively low.
To achieve these goals, the present invention provides a kind of preparation method of ZnO varistor, this method includes as follows
Step：
（1）Prepare PPS hybrid resins
It weighs 8-15 weight account polyethylenes to be added in the three-necked flask with thermometer and reflux, flask is placed in oil bath
In pot, control temperature adds in 5-10 parts by weight maleic anhydride into flask at 85-95 DEG C, stirs 1-2h, sequentially adds 0.3-
0.5 parts by weight peroxidating, two different phenylpropyl alcohol, 0.2-0.4 parts by weight dibutyl tin laurates, are stirred to react 3-4h, obtain maleic anhydride
Grafted polyethylene, it is spare；
It weighs 10-15 parts by weight polyphenylene sulfides to be added in the three-necked flask with thermometer and reflux, by three-necked flask
It is placed in digital display constant temperature electric heating set, control temperature stirs 2-3h, sequentially add the above-mentioned Malaysia of 6-8 parts by weight at 280-300 DEG C
Anhydride grafted lldpe stirs 10-20min, adds 0.3-0.5 parts by weight potassium peroxydisulfates, be stirred to react 3-4h, obtain PPS
Hybrid resin；
（2）According to following parts by weight dispensing:
35-43 parts of PPS hybrid resins
15-27 parts of zinc oxide
1-3 parts of aluminium oxide
1.5-2 parts of zirconium oxide
0.1-0.2 parts of ferroso-ferric oxide
0.05-0.1 parts of yttria；
（3）Corresponding powder is selected by the above-mentioned proportioning respectively formed, mixes in proportion to obtain mixed powder；
Then the mixed powder is subjected to extruding pelletization, to obtain pellet；The pellet carries out to hot pressing is compound to obtain
To the ZnO varistor.
Specific embodiment
Embodiment one
It weighs 8 weight account polyethylenes to be added in the three-necked flask with thermometer and reflux, flask is placed in oil bath pan
In, control temperature adds in 5 parts by weight maleic anhydride into flask at 85 DEG C, stirs 1h, sequentially adds 0.3 parts by weight peroxide
Change two different phenylpropyl alcohols, 0.2 parts by weight dibutyl tin laurate, be stirred to react 3h, obtain maleic anhydride grafted polyethylene, it is spare.
It weighs 10 parts by weight polyphenylene sulfides to be added in the three-necked flask with thermometer and reflux, by three-necked flask
It is placed in digital display constant temperature electric heating set, control temperature stirs 2h at 280 DEG C, sequentially adds the above-mentioned maleic anhydride grafting of 6 parts by weight
Polyethylene stirs 10min, adds 0.3 parts by weight potassium peroxydisulfate, be stirred to react 3h, obtain PPS hybrid resins.
According to following parts by weight dispensing:
35 parts of PPS hybrid resins
15 parts of zinc oxide
1 part of aluminium oxide
1.5 parts of zirconium oxide
0.1 part of ferroso-ferric oxide
0.05 part of yttria.
Corresponding powder is selected by the above-mentioned proportioning respectively formed, mixes in proportion to obtain mixed powder；Then by institute
It states mixed powder and carries out extruding pelletization, to obtain pellet；The pellet is carried out hot pressing, and compound i.e. to can obtain the ZnO pressure-sensitive
Resistance.
Embodiment two
It weighs 15 weight account polyethylenes to be added in the three-necked flask with thermometer and reflux, flask is placed in oil bath pan
In, control temperature adds in 10 parts by weight maleic anhydride into flask at 95 DEG C, stirs 2h, sequentially adds 0.5 parts by weight peroxide
Change two different phenylpropyl alcohols, 0.4 parts by weight dibutyl tin laurate, be stirred to react 4h, obtain maleic anhydride grafted polyethylene, it is spare.
It weighs 15 parts by weight polyphenylene sulfides to be added in the three-necked flask with thermometer and reflux, by three-necked flask
It is placed in digital display constant temperature electric heating set, control temperature stirs 3h at 300 DEG C, sequentially adds the above-mentioned maleic anhydride grafting of 8 parts by weight
Polyethylene stirs 20min, adds 0.5 parts by weight potassium peroxydisulfate, be stirred to react 4h, obtain PPS hybrid resins.
According to following parts by weight dispensing:
43 parts of PPS hybrid resins
27 parts of zinc oxide
3 parts of aluminium oxide
2 parts of zirconium oxide
0.2 part of ferroso-ferric oxide
0.1 part of yttria.
Corresponding powder is selected by the above-mentioned proportioning respectively formed, mixes in proportion to obtain mixed powder；Then by institute
It states mixed powder and carries out extruding pelletization, to obtain pellet；The pellet is carried out hot pressing, and compound i.e. to can obtain the ZnO pressure-sensitive
Resistance.
Claims (1)
1. a kind of preparation method of ZnO varistor, this method comprises the following steps：
（1）Prepare PPS hybrid resins
It weighs 8-15 weight account polyethylenes to be added in the three-necked flask with thermometer and reflux, flask is placed in oil bath
In pot, control temperature adds in 5-10 parts by weight maleic anhydride into flask at 85-95 DEG C, stirs 1-2h, sequentially adds 0.3-
0.5 parts by weight peroxidating, two different phenylpropyl alcohol, 0.2-0.4 parts by weight dibutyl tin laurates, are stirred to react 3-4h, obtain maleic anhydride
Grafted polyethylene, it is spare；
It weighs 10-15 parts by weight polyphenylene sulfides to be added in the three-necked flask with thermometer and reflux, by three-necked flask
It is placed in digital display constant temperature electric heating set, control temperature stirs 2-3h, sequentially add the above-mentioned Malaysia of 6-8 parts by weight at 280-300 DEG C
Anhydride grafted lldpe stirs 10-20min, adds 0.3-0.5 parts by weight potassium peroxydisulfates, be stirred to react 3-4h, obtain PPS
Hybrid resin；
（2）According to following parts by weight dispensing:
35-43 parts of PPS hybrid resins
15-27 parts of zinc oxide
1-3 parts of aluminium oxide
1.5-2 parts of zirconium oxide
0.1-0.2 parts of ferroso-ferric oxide
0.05-0.1 parts of yttria；
（3）Corresponding powder is selected by the above-mentioned proportioning respectively formed, mixes in proportion to obtain mixed powder；
Then the mixed powder is subjected to extruding pelletization, to obtain pellet；The pellet carries out to hot pressing is compound to obtain
To the ZnO varistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711185210.2A CN108091461A (en) | 2017-11-23 | 2017-11-23 | A kind of preparation method of ZnO varistor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711185210.2A CN108091461A (en) | 2017-11-23 | 2017-11-23 | A kind of preparation method of ZnO varistor |
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| Publication Number | Publication Date |
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| CN108091461A true CN108091461A (en) | 2018-05-29 |
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| CN201711185210.2A Pending CN108091461A (en) | 2017-11-23 | 2017-11-23 | A kind of preparation method of ZnO varistor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122995A (en) * | 1994-11-11 | 1996-05-22 | 石宗培 | Low medium temp. resistive electrothermal material |
| CN104681220A (en) * | 2015-02-04 | 2015-06-03 | 上海长园维安电子线路保护有限公司 | Surface-adhered type over-current protection element and manufacturing method |
| CN104681222A (en) * | 2015-02-04 | 2015-06-03 | 上海长园维安电子线路保护有限公司 | Novel PTC thermosensitive element |
| CN106147231A (en) * | 2016-07-13 | 2016-11-23 | 张静 | A kind of preparation method of humidity steady resistance rate polyphenyl thioether composite material |
| CN106558382A (en) * | 2015-09-25 | 2017-04-05 | 李晓忠 | A kind of high voltage gradient zinc oxide varistor |
-
2017
- 2017-11-23 CN CN201711185210.2A patent/CN108091461A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122995A (en) * | 1994-11-11 | 1996-05-22 | 石宗培 | Low medium temp. resistive electrothermal material |
| CN104681220A (en) * | 2015-02-04 | 2015-06-03 | 上海长园维安电子线路保护有限公司 | Surface-adhered type over-current protection element and manufacturing method |
| CN104681222A (en) * | 2015-02-04 | 2015-06-03 | 上海长园维安电子线路保护有限公司 | Novel PTC thermosensitive element |
| CN106558382A (en) * | 2015-09-25 | 2017-04-05 | 李晓忠 | A kind of high voltage gradient zinc oxide varistor |
| CN106147231A (en) * | 2016-07-13 | 2016-11-23 | 张静 | A kind of preparation method of humidity steady resistance rate polyphenyl thioether composite material |
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Application publication date: 20180529 |